url_list = [("EXCEL表格中VLOOKUP函数的原理与使用方法","https://www.bilibili.com/video/av933923680/"),
            ("Vlookup函数的使用方法","https://www.bilibili.com/video/av942799655/"),
            ("小蜜蜂Excel教学","https://www.bilibili.com/video/av253890537/")]

# for name, url in url_list:
#     print(name,url)



# for i in url_list:
#     # print(i[0],i[1])
#     print(i)

# 列表中remove和delete区别
# remove 是方法，需要对象，delete是关键字【或是函数】，不需要对象
a = [1, 2, 3, 4, 5, 6, 7]
a.remove(3)
print(a)  # 输出[1, 2, 4, 5, 6, 7]

# del a[0]
del a[0] # 删除列表中第一个元素
print(a)  # 输出[2, 4, 5, 6, 7]